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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $152,836,965 | 901,557,829 | 901,557,829 |
| 2006 | $226,423,773 | 1,414,556,865 | 1,414,556,865 |
| 2007 | $263,593,913 | 899,306,538 | 899,306,538 |
| 2008 | $330,584,644 | 1,546,773,015 | 1,546,773,015 |
| 2009 | $474,861,942 | 1,812,378,293 | 1,812,378,293 |
| 2010 | $465,439,909 | 1,241,433,994 | 1,241,433,994 |
| 2011 | $370,002,472 | 1,110,138,587 | 1,110,138,587 |
Note: Quantity represents Weight in kilograms
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